Author Topic: YZ250/400C Technical Bulletin  (Read 1390 times)

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Offline YZ250H

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YZ250/400C Technical Bulletin
« on: February 22, 2013, 05:12:46 PM »
Just reading an old article on the 400C.  It said Yamaha released a technical bulletin on how to set up the air forks.

Would anyone have a copy I could beg / borrow / steal  :-\  Can anyone confirm such a thing exists ?

I've decided to perservere with the air forks (initially anyway ::))
« Last Edit: February 22, 2013, 05:22:29 PM by YZ250H »
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Offline Iain Cameron

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Re: YZ250/400C Technical Bulletin
« Reply #1 on: February 22, 2013, 07:00:00 PM »
Ive never seen it , but to set them up is easy and once you have set them to your weight and riding style or track (soft or hard ) I think they are great . PM me if you need any help Iain
Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

Offline YZ250H

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Re: YZ250/400C Technical Bulletin
« Reply #2 on: February 22, 2013, 07:03:48 PM »
Thanks Iain.  Your help is always appreciated. 

For interest's sake I got the article from this great website :

http://vintageyzinfo.tripod.com/index.htm

Down the bottom on the left.  There is a bit of advice in there but I was interested to learn more.  A Couple of cool old articles from the time on the MX250 as well.
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline Ted

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Re: YZ250/400C Technical Bulletin
« Reply #3 on: February 22, 2013, 08:18:08 PM »
Find an old petrol station and the attendant will pump up your forks for you if you are struggling with the technology of it

Always a pleasure to be of assistance...feel free to ask anytime
81 YZ 465 H   77 RM 125 B

Offline YZ250H

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Re: YZ250/400C Technical Bulletin
« Reply #4 on: February 23, 2013, 06:27:57 AM »
You are truly the guru of all things Yamaha Ted  ;D ;D
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.


Offline YZ250H

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Re: YZ250/400C Technical Bulletin
« Reply #6 on: February 23, 2013, 10:01:06 AM »
Looks like it GT  8) 8)

I'm sure everyone with these forks thanks you.  I certainly do  ;).

That is fantastic  8) 8)

Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline gt96

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Re: YZ250/400C Technical Bulletin
« Reply #7 on: February 23, 2013, 10:05:33 AM »
You're welcome  :)

Offline YZ250H

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Re: YZ250/400C Technical Bulletin
« Reply #8 on: February 23, 2013, 10:18:36 AM »
After reading through them it is exactly what I was after... Brilliant.
Looking for YZ250C parts NOS if possible

"My inability to use emoticins in the right context is really getting me down :)
The only triple jumps he would have been doing are the hop, skip & jump.

Offline Iain Cameron

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Re: YZ250/400C Technical Bulletin
« Reply #9 on: February 23, 2013, 10:48:08 AM »
Thanks gt96 I knew they where made but had never seen them . copy made and put into my manual . The thing I like most about these forks is they are so easy to change ,
at the start of the day when the track is smooth have them set with a lower "high pressure" and as the track get worse add more air . Iain
Yamaha tragic ; dt1, rt1, dt2, rt2, dt2mx , rt2mx , mx250, mx360,sc500, 74dt125, yzx125, yzc250, yzc400, yzd250, yzd400, yzh250, yzh80 , dt100 , xr75 ko xr80 03 , it175 82 . Not a member of any club

Offline gt96

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Re: YZ250/400C Technical Bulletin
« Reply #10 on: February 23, 2013, 11:08:05 AM »
Gotta really thank these guys for the bulletin
http://yz125x.blogspot.com.au/

Few other links can be found here:
http://yz125d.blogspot.com.au/